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Finding the Fourth Proportional to 676,204, 933,190.69 and 374,398

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Solution

The fourth proportional to 676,204, 933,190.69 and 374,398 is: 516,685.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    676,204 : 933,190.69 = 374,398 : x
  2. Step 2: Convert to fraction form
    676,204/933,190.69 = 374,398/x
  3. Step 3: Cross multiply
    676,204x = 933,190.69 × 374,398
  4. Step 4: Simplify right side
    676,204x = 349,384,727,954.62
  5. Step 5: Solve for x
    x = 349,384,727,954.62/676,204
  6. Step 6: Final answer
    x = 516,685.39

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.